/*
* Copyright (c) 2004-2011 Marco Maccaferri and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Marco Maccaferri - initial API and implementation
*/
package org.eclipsetrader.ui.charts.indicators;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExecutableExtension;
import org.eclipse.swt.graphics.RGB;
import org.eclipsetrader.core.charts.IDataSeries;
import org.eclipsetrader.core.charts.NumericDataSeries;
import org.eclipsetrader.ui.charts.ChartParameters;
import org.eclipsetrader.ui.charts.GroupChartObject;
import org.eclipsetrader.ui.charts.HistogramAreaChart;
import org.eclipsetrader.ui.charts.HistogramBarChart;
import org.eclipsetrader.ui.charts.IChartObject;
import org.eclipsetrader.ui.charts.IChartObjectFactory;
import org.eclipsetrader.ui.charts.IChartParameters;
import org.eclipsetrader.ui.charts.LineChart;
import org.eclipsetrader.ui.charts.LineChart.LineStyle;
import org.eclipsetrader.ui.charts.MAType;
import org.eclipsetrader.ui.charts.OHLCField;
import org.eclipsetrader.ui.charts.RenderStyle;
import org.eclipsetrader.ui.internal.charts.Util;
import org.eclipsetrader.ui.internal.charts.indicators.Activator;
import com.tictactec.ta.lib.Core;
import com.tictactec.ta.lib.MInteger;
public class BBANDS implements IChartObjectFactory, IExecutableExtension {
private String id;
private String factoryName;
private String name;
private OHLCField field = OHLCField.Close;
private int period = 21;
private double upperDeviation = 2.0;
private double lowerDeviation = 2.0;
private MAType maType = MAType.EMA;
private RenderStyle upperLineStyle = RenderStyle.Line;
private RGB upperLineColor;
private RenderStyle middleLineStyle = RenderStyle.Invisible;
private RGB middleLineColor;
private RenderStyle lowerLineStyle = RenderStyle.Line;
private RGB lowerLineColor;
public BBANDS() {
}
/* (non-Javadoc)
* @see org.eclipse.core.runtime.IExecutableExtension#setInitializationData(org.eclipse.core.runtime.IConfigurationElement, java.lang.String, java.lang.Object)
*/
@Override
public void setInitializationData(IConfigurationElement config, String propertyName, Object data) throws CoreException {
id = config.getAttribute("id");
name = config.getAttribute("name");
factoryName = config.getAttribute("name");
}
/* (non-Javadoc)
* @see org.eclipsetrader.charts.ui.indicators.IChartIndicator#getId()
*/
@Override
public String getId() {
return id;
}
/* (non-Javadoc)
* @see org.eclipsetrader.charts.ui.indicators.IChartIndicator#getName()
*/
@Override
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public OHLCField getField() {
return field;
}
public void setField(OHLCField field) {
this.field = field;
}
public int getPeriod() {
return period;
}
public void setPeriod(int period) {
this.period = period;
}
public double getUpperDeviation() {
return upperDeviation;
}
public void setUpperDeviation(double upperDeviation) {
this.upperDeviation = upperDeviation;
}
public double getLowerDeviation() {
return lowerDeviation;
}
public void setLowerDeviation(double lowerDeviation) {
this.lowerDeviation = lowerDeviation;
}
public MAType getMaType() {
return maType;
}
public void setMaType(MAType maType) {
this.maType = maType;
}
public RenderStyle getUpperLineStyle() {
return upperLineStyle;
}
public void setUpperLineStyle(RenderStyle upperLineStyle) {
this.upperLineStyle = upperLineStyle;
}
public RGB getUpperLineColor() {
return upperLineColor;
}
public void setUpperLineColor(RGB upperLineColor) {
this.upperLineColor = upperLineColor;
}
public RenderStyle getMiddleLineStyle() {
return middleLineStyle;
}
public void setMiddleLineStyle(RenderStyle middleLineStyle) {
this.middleLineStyle = middleLineStyle;
}
public RGB getMiddleLineColor() {
return middleLineColor;
}
public void setMiddleLineColor(RGB middleLineColor) {
this.middleLineColor = middleLineColor;
}
public RenderStyle getLowerLineStyle() {
return lowerLineStyle;
}
public void setLowerLineStyle(RenderStyle lowerLineStyle) {
this.lowerLineStyle = lowerLineStyle;
}
public RGB getLowerLineColor() {
return lowerLineColor;
}
public void setLowerLineColor(RGB lowerLineColor) {
this.lowerLineColor = lowerLineColor;
}
/* (non-Javadoc)
* @see org.eclipsetrader.ui.charts.IChartObjectFactory#createObject(org.eclipsetrader.core.charts.IDataSeries)
*/
@Override
public IChartObject createObject(IDataSeries source) {
if (source == null) {
return null;
}
IAdaptable[] values = source.getValues();
Core core = Activator.getDefault() != null ? Activator.getDefault().getCore() : new Core();
int lookback = core.bbandsLookback(period, upperDeviation, lowerDeviation, MAType.getTALib_MAType(maType));
if (values.length < lookback) {
return null;
}
int startIdx = 0;
int endIdx = values.length - 1;
double[] inReal = Util.getValuesForField(values, field);
MInteger outBegIdx = new MInteger();
MInteger outNbElement = new MInteger();
double[] outUpper = new double[values.length - lookback];
double[] outMiddle = new double[values.length - lookback];
double[] outLower = new double[values.length - lookback];
core.bbands(startIdx, endIdx, inReal, period, upperDeviation, lowerDeviation, MAType.getTALib_MAType(maType), outBegIdx, outNbElement, outUpper, outMiddle, outLower);
GroupChartObject object = new GroupChartObject();
object.add(createLineChartObject(new NumericDataSeries("BBU", outUpper, source), upperLineStyle, upperLineColor));
object.add(createLineChartObject(new NumericDataSeries("BBM", outMiddle, source), middleLineStyle, middleLineColor));
object.add(createLineChartObject(new NumericDataSeries("BBL", outLower, source), lowerLineStyle, lowerLineColor));
return object;
}
protected IChartObject createLineChartObject(IDataSeries result, RenderStyle renderStyle, RGB color) {
LineStyle lineStyle = LineStyle.Solid;
switch (renderStyle) {
case Dash:
lineStyle = LineStyle.Dash;
break;
case Dot:
lineStyle = LineStyle.Dot;
break;
case HistogramBars:
return new HistogramBarChart(result);
case Histogram:
return new HistogramAreaChart(result, color);
case Invisible:
lineStyle = LineStyle.Invisible;
break;
}
return new LineChart(result, lineStyle, color);
}
/* (non-Javadoc)
* @see org.eclipsetrader.ui.charts.IChartObjectFactory#getParameters()
*/
@Override
public IChartParameters getParameters() {
ChartParameters parameters = new ChartParameters();
if (!factoryName.equals(name)) {
parameters.setParameter("name", name);
}
parameters.setParameter("field", field.getName());
parameters.setParameter("period", period);
parameters.setParameter("upper-deviation", upperDeviation);
parameters.setParameter("lower-deviation", lowerDeviation);
parameters.setParameter("ma-type", maType.getName());
parameters.setParameter("upper-line-style", upperLineStyle.getName());
if (upperLineColor != null) {
parameters.setParameter("upper-line-color", upperLineColor);
}
parameters.setParameter("middle-line-style", middleLineStyle.getName());
if (middleLineColor != null) {
parameters.setParameter("middle-line-color", middleLineColor);
}
parameters.setParameter("lower-line-style", lowerLineStyle.getName());
if (lowerLineColor != null) {
parameters.setParameter("lower-line-color", lowerLineColor);
}
return parameters;
}
/* (non-Javadoc)
* @see org.eclipsetrader.ui.charts.IChartObjectFactory#setParameters(org.eclipsetrader.ui.charts.IChartParameters)
*/
@Override
public void setParameters(IChartParameters parameters) {
name = parameters.hasParameter("name") ? parameters.getString("name") : factoryName;
field = parameters.hasParameter("field") ? OHLCField.getFromName(parameters.getString("field")) : OHLCField.Close;
period = parameters.getInteger("period");
upperDeviation = parameters.hasParameter("upper-deviation") ? parameters.getDouble("upper-deviation") : 2.0;
lowerDeviation = parameters.hasParameter("lower-deviation") ? parameters.getDouble("lower-deviation") : 2.0;
maType = MAType.getFromName(parameters.getString("ma-type"));
upperLineStyle = parameters.hasParameter("upper-line-style") ? RenderStyle.getStyleFromName(parameters.getString("upper-line-style")) : RenderStyle.Line;
upperLineColor = parameters.getColor("upper-line-color");
middleLineStyle = parameters.hasParameter("middle-line-style") ? RenderStyle.getStyleFromName(parameters.getString("middle-line-style")) : RenderStyle.Dot;
middleLineColor = parameters.getColor("middle-line-color");
lowerLineStyle = parameters.hasParameter("lower-line-style") ? RenderStyle.getStyleFromName(parameters.getString("lower-line-style")) : RenderStyle.Line;
lowerLineColor = parameters.getColor("lower-line-color");
}
}